Current Electricity 1 Question 24

24. If each of the resistances in the network shown in the figure is $R$, what is the resistance between the terminals $A$ and $B$ ?

(1978)

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Answer:

Correct Answer: 24. $R$

Solution:

  1. The given circuit makes a balanced Wheatstone’s bridge. The resistance between $P$ and $Q$ can be removed. All resistors have value $R$.

$$ \therefore \quad R _{A B}=R $$



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